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Method and module for determining of reference values for a vehicle control system

一种控制系统、车辆的技术，应用在控制装置、车辆部件、运输和包装等方向，达到减少计算功率量、视野少的效果

Inactive Publication Date: 2012-11-28
SCANIA CV AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the system does not involve the vehicle's cruise control

Method used

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  • Method and module for determining of reference values for a vehicle control system
  • Method and module for determining of reference values for a vehicle control system
  • Method and module for determining of reference values for a vehicle control system

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Embodiment Construction

[0029] Information about the vehicle's route can be used to predetermine the setpoint speed v of the engine control system in that vehicle ref , in order to save fuel, enhance safety and improve comfort. Other setpoint values ​​for other control systems may also be adjusted. Terrain greatly affects the control of the driveline especially in heavy vehicles, since more torque is required uphill than downhill to enable climbing certain hills without shifting gears.

[0030] The vehicle is provided with a positioning system and map information, and position data from the positioning system and terrain data from the map information are used to construct a field of view characterizing the route. In the description of the invention, GPS (Global Positioning System) is used to determine the vehicle's position data, but it should be appreciated that other kinds of global or regional positioning systems are also conceivable for providing position data to the vehicle, e.g. using radio r...

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Abstract

The present invention relates to a method for determining set-point values for a vehicle's control systems. The method comprises the steps of: determining a horizon by means of position data and map data of an itinerary made up of route segments with at least one characteristic for each segment; calculating threshold values for said at least one characteristic of segments according to one or more vehicle-specific values, which threshold values serve as boundaries for assigning segments to various categories; comparing said at least one characteristic of each segment with the calculated threshold values and placing each segment within the horizon in a category according to the results of the comparisons; calculating set-point values for the vehicle's control systems across the horizon according to rules pertaining to the categories in which segments within the horizon are placed; regulating the vehicle according to the set-point values. The invention comprises also a module adapted to determining set-point values for a control system in the vehicle.

Description

technical field [0001] The present application relates to a method and a module for determining a setpoint value of a vehicle control system presented according to the independent claims. Background technique [0002] Today, many vehicles are equipped with cruise control to make driving the vehicle easier for the driver. The desired speed can then be set by the driver, for example via controls in the steering wheel console, after which the cruise control system in the vehicle operates according to the control system to accelerate and brake the vehicle in order to maintain the desired speed. If the vehicle is equipped with an automatic shift system, the vehicle shifts gears so that the vehicle can maintain a desired speed. [0003] When using cruise control in hilly terrain, the cruise control system will attempt to maintain the set speed when going uphill. This especially causes the vehicle to accelerate over hilltops and possibly all the way downhill later, necessitating ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/14B60W10/06B60W10/10B60W30/188B60W40/06B60W30/18
CPCB60W2550/142B60W40/06B60W10/10B60W30/1882Y02T10/56B60W10/06B60W30/143B60W2550/402B60W50/0097B60W2552/15B60W2552/20B60W2556/50Y02T10/40Y02T10/84B60W30/14B60W40/076B60W2050/0075
Inventor O·约翰松J·汉松H·彼得松
Owner SCANIA CV AB
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